its fairly simple, theres a guy on here who did a step by step video of it, not sure who but he always opened with "welcome to v rod garage" or something like that, it was very helpful, also while your rebuilding them might as well put in some progressive springs, like $60 on amazon

I have the service manual. The left fork is leaking that is the reason for the rebuild.
I have rebuilt standard forks, but not cartridge forks.
The tool I'm most concerned is the "internal fork nut remover / installer tool". Which
is in the right fork.
Most of the other tools I have already have made. But the internal nut remover may
be hard to make.